“Kim spent a second day with Paris investigators for her robbery case. It’s mentally exhausting for her to rehash all the details of that awful morning, but she wants the people responsible to get punished,” a source tells PEOPLE.

“The robbery was traumatizing for Kim. Even months later, it still affects her every day life,” the source adds. “She wants to get some kind of closure. Kim is returning to LA Friday afternoon. She can’t wait to get back to L.A.”